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Single Family ResidenceResidential
$736,751$283 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $550,000 on Sep 24, 2025

21 COBBLESTONE DR

RIDGE, NY 11961
4
Beds
2
Baths
2,601 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
2.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1988
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$737K
$690K low$784K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$550,000 · Sep 24, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,174 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$3,220 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$475
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$2,745
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$670,833

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.20 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountySUFFOLK
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Lake Front

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Neighborhood · ZIP 11961These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.101
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.12,583
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.786 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,798
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$115,002
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

21 Cobblestone Dr measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 93% of homes in Ridge 11961
  • Costs less per square foot than 92% of homes in Suffolk County
  • Bigger than 97% of homes in Ridge 11961
  • Among the largest lots in East Shoreham
  • Newer than 87% of homes in Ridge 11961

What homes are worth in Ridge 11961

Each bar is how many homes fall in that price range. The marker is this home.

This home
$240K$876K

This home is worth more than 93% of homes in Ridge 11961.

How it measures up in Ridge 11961

The dot is this home. The mark in the middle is the typical home in Ridge 11961.

Estimated value$736,751
CheaperTypical $498,600Pricier

Pricier than 93% of homes nearby

Price per ft²$283
CheaperTypical $353Pricier

Pricier than 9% of homes nearby

Living area2,601 ft²
SmallerTypical 1,308 ft²Bigger

Bigger than 97% of homes nearby

Lot size2.13 ac
SmallerTypical 0.14 acBigger

Bigger than almost all homes nearby

Year built1988
OlderTypical 1977Newer

Newer than 87% of homes nearby

How 21 Cobblestone Dr ranks against every home in each area.
MeasureThis homeEast ShorehamRidge 11961Suffolk County
Estimated valuepricier than$736,75144% of homes93% of homes58% of homes
Price per ft²pricier than$28311% of homes9% of homes8% of homes
Living areabigger than2,601 ft²77% of homes97% of homes86% of homes
Lot sizebigger than2.13 acalmost all homesalmost all homes98% of homes
Year builtnewer than198874% of homes87% of homes73% of homes

About 21 Cobblestone Dr

How much is 21 Cobblestone Dr, Ridge, NY worth?

The TopHap Estimate for 21 Cobblestone Dr, Ridge, NY is $736,751 as of Aug 30, 2026. The likely range is $689,566 to $783,936. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Cobblestone Dr, Ridge, NY last sell?

21 Cobblestone Dr, Ridge, NY last sold on Sep 24, 2025 for $550,000, according to the county's recorded deed.

How big is 21 Cobblestone Dr, Ridge, NY?

21 Cobblestone Dr, Ridge, NY has 4 bedrooms, 2 bathrooms and 2,601 square feet of living space.

When was 21 Cobblestone Dr, Ridge, NY built?

21 Cobblestone Dr, Ridge, NY was built in 1988, making it 38 years old. It is a colonial home. The building has 2 stories.

How does 21 Cobblestone Dr, Ridge, NY compare to other homes in Ridge 11961?

Among the 6,061 homes in Ridge 11961, it is worth more than 93% of them ($736,751 against a typical $498,600), its price per square foot is higher than 9% of them ($283 against a typical $353), it is bigger than 97% of them (2,601 ft² against a typical 1,308 ft²), its lot is bigger than almost all of them (2.13 ac against a typical 0.14 ac) and it is newer than 87% of them (1988 against a typical 1977). Measured against all of Suffolk County, it is worth more than 58% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21 Cobblestone Dr, Ridge, NY?

The 2024 property tax bill for 21 Cobblestone Dr, Ridge, NY was $13,174. The county assessed it at $3,220.

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